Methyl 2-hydroxy-4-methyl-6-(trifluoromethoxy)pyridine-3-acetate
Methyl 2-hydroxy-4-methyl-3-(trifluoromethoxy)pyridine-6-acetate
Ethyl 2-hydroxy-4-methyl-5-(trifluoromethoxy)pyridine-3-carboxylate
Methyl 2-hydroxy-3-methyl-6-(trifluoromethoxy)pyridine-4-acetate